DE102009013846B4 - Wheel suspension for a motor vehicle - Google Patents

Wheel suspension for a motor vehicle Download PDF

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Publication number
DE102009013846B4
DE102009013846B4 DE200910013846 DE102009013846A DE102009013846B4 DE 102009013846 B4 DE102009013846 B4 DE 102009013846B4 DE 200910013846 DE200910013846 DE 200910013846 DE 102009013846 A DE102009013846 A DE 102009013846A DE 102009013846 B4 DE102009013846 B4 DE 102009013846B4
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DE
Germany
Prior art keywords
torsion spring
rotary drive
wheel suspension
vehicle body
motor vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE200910013846
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German (de)
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DE102009013846A1 (en
Inventor
Norbert Ackermann
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Publication date
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Priority to DE200910013846 priority Critical patent/DE102009013846B4/en
Publication of DE102009013846A1 publication Critical patent/DE102009013846A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/025—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a torsion spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/18—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only
    • B60G11/181—Resilient suspensions characterised by arrangement, location or kind of springs having torsion-bar springs only arranged in a plane parallel to the longitudinal axis of the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/14—Torsion springs consisting of bars or tubes
    • F16F1/145—Torsion springs consisting of bars or tubes with means for modifying the spring characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/142—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/13—Torsion spring
    • B60G2202/132—Torsion spring comprising a longitudinal torsion bar and/or tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/122—Mounting of torsion springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/62—Adjustable continuously, e.g. during driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/22—Spring constant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Radaufhängung für ein Kraftfahrzeug, die mit einem über Lager und einer Torsionsfeder an einem Fahrzeugaufbau befestigbaren sowie um eine Längsachse drehbaren Querlenker versehen ist, wobei die Torsionsfeder mit dem Fahrzeugaufbau über ein Drehelement fixiert ist, und wobei die Torsionsfeder von einem Drehantrieb im Drehelement beaufschlagt wird, der manuell oder automatisch ansteuerbar ist dadurch gekennzeichnet, dass der Drehantrieb (7) über die Torsionsfeder (3) in Richtung der Längsachse (8) verschiebbar angeordnet ist.Wheel suspension for a motor vehicle, which is provided with a mountable via a bearing and a torsion spring on a vehicle body and rotatable about a longitudinal axis wishbone, wherein the torsion spring is fixed to the vehicle body via a rotary member, and wherein the torsion spring is acted upon by a rotary drive in the rotary member, The manually or automatically controlled is characterized in that the rotary drive (7) via the torsion spring (3) in the direction of the longitudinal axis (8) is displaceably arranged.

Figure 00000001
Figure 00000001

Description

Die Erfindung bezieht sich auf eine Radaufhängung für ein Kraftfahrzeug, die mit einem über Lager und einer Torsionsfeder an einem Fahrzeugaufbau befestigbaren sowie um eine Längsachse drehbaren Querlenker versehen ist, wobei die Torsionsfeder mit dem Fahrzeugaufbau über ein Drehelement fixiert ist, und wobei die Torsionsfeder von einem Drehantrieb im Drehelement beaufschlagt wird, der manuell oder automatisch ansteuerbar ist.The The invention relates to a suspension for a motor vehicle, which with one over Bearings and a torsion spring fastened to a vehicle body as well as around a longitudinal axis rotatable wishbone is provided, wherein the torsion spring with the Vehicle body over a rotary member is fixed, and wherein the torsion spring of a rotary drive is acted upon in the rotary element, which can be controlled manually or automatically is.

Es sind bereits Radaufhängungen für Kraftfahrzeuge bekannt (z. B. DE 10 2006 061 984 B3 ), bei denen ein Querlenker über Lager und über eine Drehstabanordnung am Fahrzeugaufbau befestigt ist. Die Drehstabanordnung besteht dabei aus zwei Einzelteilen, die über eine lösbare Verbindung gekoppelt sind, so dass über ein Einstellelement eine Verdrehung der beiden Einzelteile zu Einstellzwecken ermöglicht wird. Es sollen hierbei durch ein Verdrehen der einander zugeordneten Enden der einzelnen Bauteile ein Ausgleich von Fertigungstoleranzen der Aufbaufeder und der Querlenkerfeder sowie die Konstruktionslage an unterschiedliche Leergewichte bei Anwendung von unterschiedlichen Fahrzeugtypen angepasst werden können.There are already known wheel suspensions for motor vehicles (eg. DE 10 2006 061 984 B3 ), in which a wishbone is mounted on bearings and a torsion bar assembly on the vehicle body. The torsion bar assembly consists of two individual parts, which are coupled via a detachable connection, so that a setting of a rotation of the two items is made possible for setting purposes. It should be adjusted by turning the mutually associated ends of the individual components compensation of manufacturing tolerances of the body spring and the wishbone spring and the construction position to different empty weights when using different types of vehicles.

Aus der gattungsbildenden DE 10 2006 061 985 A1 eine Radaufhängung für ein Kraftfahrzeug bekannt, die mit einem über Lager und einer Torsionsfeder an einen Fahrzeugaufbau befestigbaren sowie um eine Längsachse drehbaren Querlenker versehen ist, wobei die Torsionsfeder mit dem Fahrzeugaufbau über ein Drehelement fixiert ist, und wobei die Torsionsfeder von einem Drehantrieb im Drehelement beaufschlagt wird, der manuell oder automatisch ansteuerbar ist.From the generic DE 10 2006 061 985 A1 a suspension for a motor vehicle, which is provided with a bearing and a torsion spring fastened to a vehicle body and rotatable about a longitudinal axis wishbone, wherein the torsion spring is fixed to the vehicle body via a rotary member, and wherein the torsion spring is acted upon by a rotary drive in the rotary member which can be controlled manually or automatically.

Aufgabe der Erfindung ist es, eine Radaufhängung für Kraftfahrzeuge weiterzubilden, wobei nicht nur die Federvorspannung des Querlenkers, sondern auch die auf den Querlenker wirkende Federrate verändert werden kann.task The invention is to develop a suspension for motor vehicles, not only the spring preload of the wishbone, but also the spring rate acting on the control arm can be changed.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention Problem solved by the features of claim 1.

Hierbei ist von Vorteil, dass durch die axiale Verschiebbarkeit des Drehantriebes der Lagerpunkt der Torsionsfeder entlang der Längsachse, das heißt in Richtung Xa verändert werden kann, so dass die Länge der Torsionsfeder als auch ihre Steifigkeit verändert wird.It is advantageous that can be changed by the axial displacement of the rotary drive of the bearing point of the torsion spring along the longitudinal axis, that is, in the direction X a , so that the length of the torsion spring and its rigidity is changed.

Durch die Veränderung der Vorspannung der Torsionsfeder bzw. mit der Veränderung der Federrate der Torsionsfeder lässt sich eine Niveauregelung des Fahrzeuges erzielen. Durch die Veränderung der Länge der Torsionsfeder wird das Schwingungsverhalten des Fahrzeugs beeinflusst.By the change the bias of the torsion spring or with the change The spring rate of the torsion spring can be a level control of the Achieve vehicle. By changing the length of the Torsion spring is the vibration behavior of the vehicle influenced.

Eine vorteilhafte Ausgestaltung sieht vor, dass der Drehantrieb elektrisch oder hydraulisch angesteuert wird.A advantageous embodiment provides that the rotary drive electrically or hydraulically controlled.

Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt.preferred embodiments The invention are shown schematically in the drawings.

Es zeigt:It shows:

1 eine schematische Darstellung einer Radaufhängung für ein Kraftfahrzeug zusammen mit einem drehbaren und verschiebbaren Drehantrieb. 1 a schematic representation of a suspension for a motor vehicle together with a rotatable and displaceable rotary drive.

Die in 1 dargestellte Radaufhängung 1 für Kraftfahrzeuge zeigt im Wesentlichen das an mindestens einem Querlenker 5 befestigte Rad 9 des Kraftfahrzeuges, wobei mindestens einer der Querlenker 5 über entsprechende Lager 2 mit einer Torsionsfeder 3 in Verbindung steht.In the 1 illustrated suspension 1 for motor vehicles essentially shows that at least one wishbone 5 attached wheel 9 of the motor vehicle, wherein at least one of the transverse link 5 via appropriate bearings 2 with a torsion spring 3 communicates.

Die Torsionsfeder 3 ist dabei über ein Drehelement 6 mit dem Fahrzeugaufbau 4 verbunden.The torsion spring 3 is about a rotary element 6 with the vehicle body 4 connected.

Der Drehantrieb 7 im Drehelement 6 lässt sich dabei manuell oder automatisch in Umfangsrichtung zur Veränderung der Federvorspannung der Torsionsfeder 3 verdrehen, als auch in Längsrichtung Xa über die Torsionsfeder 3 zur Veränderung der Federlänge bzw. der Federrate verschieben.The rotary drive 7 in the rotary element 6 can be manually or automatically in the circumferential direction to change the spring preload of the torsion spring 3 twist, as well as in the longitudinal direction X a over the torsion spring 3 to change the spring length or the spring rate.

Durch die Kombination durch Verdrehung bzw. Verschiebung des Drehantriebes 7 wird die Geometrie in Bezug auf den Fahrzeugaufbau verändert, so dass die axiale Verschiebbarkeit des Lagerpunktes in Richtung Xa die Länge der Drehstabfeder und damit ihre Steifigkeit verändert und dass diese Steifigkeitsänderung mit einer einstellbaren Federrate der Torsionsfeder 3 kombiniert werden kann.By the combination by rotation or displacement of the rotary drive 7 the geometry is changed with respect to the vehicle body, so that the axial displacement of the bearing point in the direction X a changes the length of the torsion bar and thus its rigidity and that this change in stiffness with an adjustable spring rate of the torsion spring 3 can be combined.

Die Torsionsfeder 3 zeigt ein zusätzliches Lager 10, welches der Abstützung zwischen dem Querbalken 5 und dem Drehelement 6 bzw. dem Drehantrieb 7 dient.The torsion spring 3 shows an additional warehouse 10 which is the support between the transom 5 and the rotary element 6 or the rotary drive 7 serves.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
RadaufhängungArm
22
Lagercamp
33
Torsionsfedertorsion spring
44
Fahrzeugaufbauvehicle body
55
Querlenkerwishbone
66
Drehelementrotating member
77
Drehantriebrotary drive
88th
Längsachselongitudinal axis
99
Radwheel
1010
Lagercamp

Claims (3)

Radaufhängung für ein Kraftfahrzeug, die mit einem über Lager und einer Torsionsfeder an einem Fahrzeugaufbau befestigbaren sowie um eine Längsachse drehbaren Querlenker versehen ist, wobei die Torsionsfeder mit dem Fahrzeugaufbau über ein Drehelement fixiert ist, und wobei die Torsionsfeder von einem Drehantrieb im Drehelement beaufschlagt wird, der manuell oder automatisch ansteuerbar ist dadurch gekennzeichnet, dass der Drehantrieb (7) über die Torsionsfeder (3) in Richtung der Längsachse (8) verschiebbar angeordnet ist.Wheel suspension for a motor vehicle, which is provided with a mountable via a bearing and a torsion spring to a vehicle body and rotatable about a longitudinal axis wishbone, wherein the torsion spring is fixed to the vehicle body via a rotary member, and wherein the torsion spring is acted upon by a rotary drive in the rotary member, which can be controlled manually or automatically, characterized in that the rotary drive ( 7 ) via the torsion spring ( 3 ) in the direction of the longitudinal axis ( 8th ) is arranged displaceably. Radaufhängung nach Anspruch 1, dadurch gekennzeichnet, dass der Drehantrieb (7) elektrisch angesteuert wird.Wheel suspension according to claim 1, characterized in that the rotary drive ( 7 ) is electrically controlled. Radaufhängung nach Anspruch 1, dadurch gekennzeichnet, dass der Drehantrieb (7) hydraulisch angesteuert wird.Wheel suspension according to claim 1, characterized in that the rotary drive ( 7 ) is hydraulically controlled.
DE200910013846 2009-03-18 2009-03-18 Wheel suspension for a motor vehicle Expired - Fee Related DE102009013846B4 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023072468A1 (en) * 2021-10-28 2023-05-04 e-more AG Platform for at least four-wheeled motor vehicles with electric drives

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017221587B4 (en) * 2017-11-30 2020-07-23 Audi Ag Torsion spring arrangement for a wheel suspension of a motor vehicle and wheel suspension for a wheel of an axle of a motor vehicle
AT524936B1 (en) * 2021-10-28 2022-11-15 E More Ag Platform for at least four-wheel motor vehicles with electric drive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928062A1 (en) * 1989-08-25 1990-11-29 Daimler Benz Ag Balancing system for independently suspended wheels - has control unit which carries two oppositely positioned level adjustment members with drive arrangement with worm drive
DE102006061984B3 (en) * 2006-12-21 2008-02-28 Thyssenkrupp Bilstein Suspension Gmbh Wheel suspension for motor vehicle, has bearing and spring torsion bar assembly mountable in vehicle body and transverse arm, where torsion bar assembly has body spring mounted in vehicle body
DE102006061985A1 (en) * 2006-12-21 2008-07-03 Thyssenkrupp Bilstein Suspension Gmbh Wheel suspension for a motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928062A1 (en) * 1989-08-25 1990-11-29 Daimler Benz Ag Balancing system for independently suspended wheels - has control unit which carries two oppositely positioned level adjustment members with drive arrangement with worm drive
DE102006061984B3 (en) * 2006-12-21 2008-02-28 Thyssenkrupp Bilstein Suspension Gmbh Wheel suspension for motor vehicle, has bearing and spring torsion bar assembly mountable in vehicle body and transverse arm, where torsion bar assembly has body spring mounted in vehicle body
DE102006061985A1 (en) * 2006-12-21 2008-07-03 Thyssenkrupp Bilstein Suspension Gmbh Wheel suspension for a motor vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023072468A1 (en) * 2021-10-28 2023-05-04 e-more AG Platform for at least four-wheeled motor vehicles with electric drives

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OP8 Request for examination as to paragraph 44 patent law
R020 Patent grant now final

Effective date: 20110619

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee